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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>3d变换</title>
    <link rel="stylesheet" href="css/3D.css">
</head>
<body>
    <h1>将鼠标放于方块上方欣赏效果</h1>
    <div class="rotateX">
        绕x轴旋转180度
    </div>
    <div class="rotateY">
        绕y轴旋转180度
    </div>
    <div class="rotateZ">
        绕Z轴旋转180度
    </div>
</body>
</html>